title: [A case of histiocytosis X of the penis].
abstract: A case of localized histiocytosis X of the penis was reported. The patient was a 9-year-old boy who had several tumor lesions on the glans penis and inner layer of prepuce. Biopsy specimens were studied by H-E staining and immunohistochemical staining for S-100 protein (S-100), lysozyme (Lys), leucocyte common antigen (LCA), and Leu-M1. They revealed diffuse infiltration of many atypical histiocytes, which were shown to be S-100+, Lys+, LCA- and Leu-M1-. This indicates that these cells were derived from T-zone histiocyte system. After complete remission of these tumors, the other one arose from anal mucosa. In the literature we could find only one case of a primary penile lesion reported by Myers and others.
authors.affiliation: Department of Urology, Daijukai Kaisei Hospital.
authors.forename: T
authors.initials: T
authors.lastname: Yokota
authors.forename: Y
authors.initials: Y
authors.lastname: Aga
authors.forename: H
authors.initials: H
authors.lastname: Miki
authors.forename: M
authors.initials: M
authors.lastname: Ohmori
mesh_terms: D001005:Anus Neoplasms / Q000473:pathology; D002648:Child; D006646:Histiocytosis, Langerhans-Cell / Q000175:diagnosis / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D010412:Penile Neoplasms / Q000175:diagnosis / Q000473:pathology*; D012008:Recurrence; D012075:Remission, Spontaneous; D009418:S100 Proteins / Q000032:analysis
chemical_list: D009418:S100 Proteins